raw – Postprocessing of Sony ARW with Darktable

I have the feeling that the ARW post-processing with Darktable leads to strange results. I tried:

  1. the "standard" base curve
  2. Base curve with two or three exposures Fusion [1]
  3. Base curve off and instead movie module [2]

Regardless of what I do, the resulting image I view with "Image Viewer" is much darker (saturated?) And flatter than in DT if I get the desired effect on the screen when converting the file to JPEG.

[1]: See https://www.darktable.org/2016/08/compressing-dynamic-range-with-exposure-fusion/

[2]: See https://www.darktable.org/2018/12/darktable-26/

lightroom – Is it legal to download Darktable in European countries?

Usually when the officially The website of each software contains download links. The download is legal. This includes proprietary software (eg updates and trial versions), provided you comply with the license terms.

There have been exceptions in the past. If you have any concerns, you should contact the developers directly.

darktable – How to export with all my CPU cores / GPU

I use draktable and it takes a long time to export all my images. Something like a few hours since there are many pictures. As I monitor my CPU usage, I see that Darktable is using all CPU cores for its GUI. However, only one kernel is used during the export. Can I ask Darktable to use all my CPU cores?

Here are the versions I use:

Darktable: 2.4.2
OS: Kubuntu 18.04

Here is a screenshot of my darktable configuration:

Enter image description here

Incidentally, I also have a GeForce GTX 1080 ti. But it is not used at all while I export images!

+ ------------------------------------------------- ---------------------------- +
| NVIDIA-SMI 396.54 driver version: 396.54 |
| ------------------------------- + ----------------- - ---- + ---------------------- +
| GPU Name Persistence M | Bus ID Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr: Use / Cap | Memory usage | GPU-Util Compute M. |
| ====================================== === == + =====================
| 0 GeForce GTX 108 ... Off | 00000000: 01: 00.0 On | N / A |
| 13% 55C P2 79W / 280W | 726 MB / 11175 MB | 3% standard |
+ ------------------------------- + ----------------- ----- + ---------------------- +

timelapse – How do I create a smooth transition between styles in fast motion with Darktable?

I enjoy making timelapses and using color correcting. The problem I have is that I would like to use a different formula in Darktable for scenes like a sunset, where the beginning and the end of the time lapse are of different exposure and color.

This causes a problem because at least two sets of images of different styles are applied thereto. Such a setting results in a jump from one color correction to the next as the timelapse images are converted to video. What I think is the right approach is to ask Darktable to move from one style to the other, from the beginning of the image list to the end.

Is there a way to do this with Darktable? What are my solutions in general?

Darktable darkens images automatically and can not be reset

Normally, I export 100% quality JPEG files from Photoshop, import the JPEG files into Darktable, and then execute watermarks, etc., before exporting them back to JPEG files with about 70% quality.

When I import a file in Darktable 2.6.2, it automatically darkens. Example below

Enter image description here

Darktable preview on the left, original JPEG image in 100% quality right.

In darktable, I have not assigned a module to the image. I just open the picture and have darkened the picture.

I checked the history stack. There was nothing applied. But something was applied with force that I can not turn off.

What's happening? Is it a bug or something?

I reset Darktable (deleted rm ~ / .config / darktable / * After reloading and importing a file, the image automatically darkens.

Remove color cast in the Darktable?

I'm playing with Darktable, which comes from Photoshop, and although I really admire most of its features, there's one thing that I do not seem to have in mind.

In Photoshop, I can easily remove color casts using the Auto Color command, which basically applies layers to stretch the individual color channels. Alternatively, I can manually play with levels per channel. In Darktable I have not found an equivalent way to remove a color cast. What is an effective darktable approach here?

With Darktable, you can batch process RAW into another supported format

After some exploration, it is actually quite straightforward. The process can be adapted to your own conversion needs, but I wanted 8-bit TIFF – the reason for this is irrelevant.

  1. Open & # 39; Storage Options & # 39; in the section & # 39; Lighttable & # 39; from Darktable, and set the required settings. For me TIFF, 8 bit, uncompressed. Set the desired path for the file export to the hard disk and the conflict options.

Storage Options Settings

  1. Select all images that you want to export / convert. Use CTRL and LMB to select multiple RAW images. For this test, I used the same RAW image with different filenames (1300875350_fuji-x100-dscf5613.RAF, 2300875350_fuji-x100-dscf5613.RAF, 3300875350_fuji-x100-dscf5613.RAF). Unfortunately, you can not see that on the screenshot, but I hope the reader understands the strategy.

Select custom images for export

  1. Alternatively, you can select the SELECT ALL option at the top right of Lightable UI.

Fast and Dirty Select all options for export

  1. Click the EXPORT button under "Storage Options" – see step 1 above. Darktable then exports the files in TIFF format (or some other format).

The result on the hard disk

I hope that helps some others like me who want to convert a whole range of files from RAW to another format. Bravo!

Preferences – By default, accept the imported style in Darktable

I've just learned that visualizing RAW images is not as insignificant as I thought. As good as Darktable offers a good default setting for all cameras, these presets are not perfect. I found some online dstyle For my camera optimized files, I have imported them and they look much better than the default.

How can Darktable be configured to apply this imported style by default to all pictures taken with this camera?